WO2015125485A1 - Air-blowing device - Google Patents

Air-blowing device Download PDF

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Publication number
WO2015125485A1
WO2015125485A1 PCT/JP2015/000805 JP2015000805W WO2015125485A1 WO 2015125485 A1 WO2015125485 A1 WO 2015125485A1 JP 2015000805 W JP2015000805 W JP 2015000805W WO 2015125485 A1 WO2015125485 A1 WO 2015125485A1
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WO
WIPO (PCT)
Prior art keywords
air
air flow
blower
flow downstream
downstream end
Prior art date
Application number
PCT/JP2015/000805
Other languages
French (fr)
Japanese (ja)
Inventor
俊勝 近藤
昌史 松川
神谷　洋平
勝 神谷
猛 宮本
功 近藤
伊藤　隆
竹内　和宏
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to BR112016017739-8A priority Critical patent/BR112016017739B1/en
Priority to KR1020167016794A priority patent/KR101848717B1/en
Priority to EP15752394.5A priority patent/EP3109484B1/en
Priority to US15/112,706 priority patent/US10309422B2/en
Priority to MX2016009570A priority patent/MX2016009570A/en
Priority to CN201580009549.XA priority patent/CN106062380B/en
Priority to CA2940267A priority patent/CA2940267C/en
Publication of WO2015125485A1 publication Critical patent/WO2015125485A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00457—Ventilation unit, e.g. combined with a radiator
    • B60H1/00464—The ventilator being of the axial type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/006—Noise reduction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/33—Shrouds which are part of or which are rotating with the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
    • F05B2280/6015—Resin

Definitions

  • the present disclosure relates to a blower that blows air to a heat exchanger such as a radiator.
  • an air blower including an axial fan that supplies air to a radiator and a shroud that holds the axial fan and forms an air passage from the radiator to the axial fan is known (see, for example, Patent Document 1). ).
  • the shroud is a shroud that connects a bell mouth (cylindrical portion) configured to cover the outer periphery of the axial fan and a space on the downstream side of the air flow of the radiator to the cylindrical portion. It has a plate part (plane part).
  • a ring fan provided with a ring portion that annularly connects the outer peripheral ends of a plurality of blades has been used as an axial fan of a blower.
  • the bell mouth of the shroud is configured substantially parallel to the ring portion.
  • the bellmouth airflow downstream portion is curved so as to cover the ring portion from the airflow downstream side, and the airflow downstream end portion of the ring portion and the bellmouth end portion are opposed to each other in the airflow direction. ing.
  • This indication aims at providing the air blower which can reduce noise in view of the above-mentioned point.
  • a blower includes an axial-flow type blower fan that is driven to rotate and generates an air flow, an air inlet port that is sucked into the blower fan, and an air outlet unit that blows air from the blower fan. And a shroud formed.
  • the blower fan extends radially from a boss provided at the center of rotation, and a plurality of blades spaced apart from each other in the rotation direction and a ring portion that connects the outer peripheral ends of the plurality of blades in the circumferential direction.
  • the inner peripheral wall surface of the air flow downstream end of the air outlet is disposed on the radially outer side of the rotary shaft of the blower fan with respect to the air flow downstream end of the ring portion.
  • the air flow downstream end of the air outlet is positioned on the outer side in the radial direction of the rotating shaft as it goes toward the air flow downstream.
  • the air flowing backward with respect to the blown air flow (main flow) of the blower fan easily flows into the clearance between the ring part of the blower fan and the outlet part of the shroud. Accordingly, since the backflow air of the blower fan can be smoothly flowed into the clearance from the outside in the radial direction of the rotation shaft of the blower fan, noise caused by interference between the blowout air and the backflow air, which is the main flow of the blower fan, is generated. Can be reduced.
  • the air flow downstream end portion of the air outlet portion is configured to be positioned on the outer side in the radial direction of the rotation shaft toward the air flow downstream side” means that the air of the air outlet portion It does not mean that the entire area of the downstream end of the flow is configured to be positioned on the radially outer side of the rotating shaft toward the downstream side of the air flow. It is also included that a part of the part is configured to be positioned on the outer side in the radial direction of the rotation shaft as it goes downstream of the air flow.
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG. It is sectional drawing which shows a part of air blower which concerns on 2nd Embodiment. It is sectional drawing which shows a part of air blower which concerns on 3rd Embodiment. It is sectional drawing which shows a part of air blower which concerns on other embodiment (1). It is sectional drawing which shows a part of air blower which concerns on other embodiment (2).
  • the blower shown in the present embodiment is a blower used for cooling the refrigerant radiator 10 and the radiator 20 of an automobile.
  • the blower device includes a shroud 30, a blower fan 40, and a motor 50.
  • the refrigerant radiator 10 is a heat exchanger that cools the refrigerant by exchanging heat between the refrigerant circulating in the refrigeration cycle (not shown) and the outside air.
  • the radiator 20 is a heat exchanger that cools the engine coolant by exchanging heat between the engine coolant and the outside air.
  • the external shapes of the refrigerant radiator 10 and the radiator 20 are rectangular (in the present embodiment, substantially rectangular) in plan view, that is, in a plane perpendicular to the air flow direction.
  • the refrigerant radiator 10 is disposed on the vehicle front side of the radiator 20, that is, on the upstream side of the air flow.
  • the refrigerant radiator 10 and the radiator 20 are connected and integrated.
  • the shroud 30 is made of resin (for example, polypropylene containing glass fiber), holds the motor 50, and guides the air flow so that the air flow induced by the blower fan 40 flows to the refrigerant radiator 10 and the radiator 20. It is a part to do.
  • the shroud 30 is disposed on the vehicle rear side of the radiator 20, that is, on the air flow downstream side.
  • the shroud 30 is formed in an annular shape (cylindrical shape) and is configured to cover the outer periphery of the blower fan 40, and a space on the downstream side of the air flow of the radiator 20 through the smooth passage to the cylindrical portion 31. And a plane portion 32 to be connected.
  • the flat surface portion 32 constitutes an air inlet portion for air sucked into the blower fan 40
  • the cylindrical portion 31 constitutes an air outlet portion that blows air from the blower fan 40.
  • the flat portion 32 covers the back surface of the radiator 20, that is, the surface of the radiator 20 on the vehicle rear side.
  • the flat surface portion 32 has a cylindrical shape that communicates with the cylindrical portion 31 and also communicates with the outside.
  • planar shape of the cylindrical part 31 is circular.
  • planar shape of the shroud 30 is a rectangle. That is, the planar shape of the outer peripheral edge 300 of the shroud 30 is rectangular. Further, the opening area of the plane portion 32 is larger than the opening area of the cylindrical portion 31.
  • the blower fan 40 is an axial-flow type blower fan that blows air, and is configured to rotate around a rotation shaft.
  • the blower fan 40 extends radially from a boss portion 41 provided at the center of rotation, and connects the plurality of blades 42 spaced apart from each other in the rotation direction and the outer peripheral ends of the plurality of blades 42 in an annular shape. And a ring portion 43 to be used.
  • the blower fan 40 is disposed in the hollow portion of the cylindrical portion 31 of the shroud 30.
  • a clearance 61 is formed between the outer peripheral surface of the ring portion 43 and the inner peripheral surface of the cylindrical portion 31. Thereby, the blower fan 40 is rotatable in the cylindrical portion 31 without contacting the cylindrical portion 31.
  • the radial length of the rotating shaft (hereinafter simply referred to as the rotating shaft) of the blower fan 40 in the clearance 61 that is, the diameter of the rotating shaft between the outer peripheral surface of the ring portion 43 and the inner peripheral surface of the cylindrical portion 31.
  • the length in the direction is called the gap height.
  • the motor 50 is an electric motor that gives rotational power to the blower fan 40, and has a motor shaft (not shown).
  • the motor 50 is supported by a plurality of motor stays 33 provided on the cylindrical portion 31 of the shroud 30.
  • the motor 50 rotates the blower fan 40 by rotating the motor shaft, and generates an air flow in the axial direction of the blower fan 40, that is, in the axial direction of the rotation shaft.
  • the above is the overall configuration of the blower.
  • a flange portion 44 is connected to the end of the ring portion 43 on the upstream side of the air flow and extends radially outward of the rotating shaft.
  • the collar portion 44 is formed integrally with the ring portion 43.
  • the cylindrical portion 31 of the shroud 30 is formed substantially parallel to a portion (parallel portion) other than the flange portion 44 in the ring portion 43.
  • the inner peripheral wall surface of the air flow downstream end portion 34 of the cylindrical portion 31 is disposed on the radially outer side of the rotation shaft with respect to the air flow downstream end portion of the ring portion 43 of the blower fan 40.
  • the air flow downstream end 34 of the cylindrical portion 31 is positioned on the outer side in the radial direction of the rotating shaft as it goes toward the air flow downstream.
  • the air flow downstream end portion 34 of the cylindrical portion 31 is configured such that the gap dimension between the downstream end portion 34 of the cylindrical portion 31 and the ring portion 43 increases from the air flow upstream side toward the downstream side. ing. That is, the air flow downstream end 34 of the cylindrical portion 31 is curved so as to move away from the ring portion 43 from the air flow upstream side toward the downstream side.
  • the air flow downstream end 34 in the cylindrical portion 31 is formed in a circular arc shape that protrudes radially inward of the rotating shaft.
  • the inner peripheral wall surface of the air flow downstream end portion 34 of the cylindrical portion 31 is disposed on the radially outer side of the rotating shaft with respect to the air flow downstream end portion of the ring portion 43.
  • the air flow downstream end 34 of the cylindrical portion 31 is positioned on the outer side in the radial direction of the rotating shaft as it goes toward the air flow downstream. According to this, the air that flows backward with respect to the blown air flow (main flow) of the blower fan 40 easily flows into the clearance 61 between the ring portion 43 of the blower fan 40 and the cylindrical portion 31 of the shroud 30. That is, the main flow and the reverse flow of the blower fan 40 are positively separated.
  • the second embodiment is different from the first embodiment in the shape of the air flow downstream end 34 of the cylindrical portion 31.
  • the air flow downstream end 34 of the cylindrical portion 31 is linearly inclined outwardly in the radial direction of the rotating shaft toward the air flow downstream. That is, the air flow downstream end 34 of the cylindrical portion 31 linearly increases from the upstream side of the air flow toward the downstream side so that the gap dimension between the downstream end 34 of the cylindrical portion 31 and the ring portion 43 increases. It is inclined. According to the present embodiment, the backflow air of the blower fan 40 is likely to flow into the clearance 61 between the ring portion 43 of the blower fan 40 and the cylindrical portion 31 of the shroud 30, so the same effect as in the first embodiment is obtained. Can be obtained.
  • the third embodiment is different from the first embodiment in the shape of the air flow downstream end 34 of the cylindrical portion 31.
  • the air flow downstream end 34 of the cylindrical portion 31 has a cross-sectional shape so as to gradually step away from the ring portion 43 from the air flow upstream side to the downstream side. Is stepped. That is, the air flow downstream end 34 of the cylindrical portion 31 is configured such that the gap size increases stepwise from the air flow upstream side toward the downstream side.
  • the backflow air of the blower fan 40 is likely to flow into the clearance 61 between the ring portion 43 of the blower fan 40 and the cylindrical portion 31 of the shroud 30, so the same effect as in the first embodiment is obtained. Can be obtained.
  • the entire region of the air flow downstream end portion 34 in the cylindrical portion 31 of the shroud 30 is configured so as to be positioned on the outer side in the radial direction of the rotating shaft toward the air flow downstream side.
  • the inner peripheral wall surface of the air flow downstream end portion 34 of the cylindrical portion 31 is radially outside the rotation shaft with respect to the air flow downstream end portion of the ring portion 43 of the blower fan 40.
  • positioned in was demonstrated, it is not limited to this.
  • the inner peripheral wall surface of the air flow downstream end 34 of the cylindrical portion 31 is arranged so as to overlap with the air flow downstream end of the ring portion 43 when viewed from the air flow direction. May be.
  • the air blower of the present disclosure is configured as the air blower used for cooling the refrigerant radiator 10 and the radiator 20 of the automobile has been described, but this is an example. That is, the present disclosure is not limited to the configuration described above, and other configurations that can realize the present disclosure can be employed.
  • the structure provided with the shroud 30 and the ventilation fan 40 at least may be sufficient as an air blower.

Abstract

An air-blowing fan (40) is provided with: a plurality of blades (42) which extend radially from a boss part (41) provided at the rotational centre, and which are disposed at a distance from each other in the rotational direction; and a ring part (43) which annularly connects outer peripheral ends of the plurality of blades (42). The inner-peripheral-wall surface of an end (34) of a cylindrical part (31) at the downstream side of the airflow is provided further outwards in the radial direction from the rotational axis of the air-blowing fan (40) than an end of the ring part (43) at the downstream side of the airflow. The end (34) of the cylindrical part (31) at the downstream side of the airflow is configured so as to be positioned further outwards in the radial direction from the rotational axis, as said end (34) extends towards the downstream side of the airflow. As a result, in this air-blowing device, the formation of vortices in the reverse airflow can be inhibited, and noise can be reduced.

Description

送風装置Blower 関連出願の相互参照Cross-reference of related applications
　本出願は、当該開示内容が参照によって本出願に組み込まれた、２０１４年２月２１日に出願された日本特許出願２０１４－０３１５１６を基にしている。 This application is based on Japanese Patent Application No. 2014-031516 filed on Feb. 21, 2014, the disclosure of which is incorporated herein by reference.
　本開示は、ラジエータ等の熱交換器に空気を送風する送風装置に関するものである。 The present disclosure relates to a blower that blows air to a heat exchanger such as a radiator.
　従来、ラジエータに空気を供給する軸流ファンと、軸流ファンを保持するとともにラジエータから軸流ファンに至る空気通路を形成するシュラウドとを備える送風装置が知られている（例えば、特許文献１参照）。特許文献１に記載のような送風装置において、シュラウドは、軸流ファンの外周を覆うように構成されたベルマウス（円筒部）と、ラジエータの空気流れ下流側の空間を円筒部まで接続するシュラウドプレート部（平面部）とを有している。 2. Description of the Related Art Conventionally, an air blower including an axial fan that supplies air to a radiator and a shroud that holds the axial fan and forms an air passage from the radiator to the axial fan is known (see, for example, Patent Document 1). ). In the air blower described in Patent Document 1, the shroud is a shroud that connects a bell mouth (cylindrical portion) configured to cover the outer periphery of the axial fan and a space on the downstream side of the air flow of the radiator to the cylindrical portion. It has a plate part (plane part).
特開２０１０－１３２１８３号公報JP 2010-132183 A
　ところで、近年、成形性および強度向上の観点から、送風装置の軸流ファンとして、複数のブレードの外周端部同士を環状に接続するリング部を備えるリングファンが用いられている。このようなリングファンを備える送風装置では、シュラウドのベルマウスを、リング部と略平行に構成している。もしくは、ベルマウスの空気流れ下流側部位を、リング部を空気流れ下流側から覆うように湾曲させて、リング部の空気流れ下流側端部とベルマウスの端部とを空気流れ方向に対向させている。 Incidentally, in recent years, from the viewpoint of improving moldability and strength, a ring fan provided with a ring portion that annularly connects the outer peripheral ends of a plurality of blades has been used as an axial fan of a blower. In a blower provided with such a ring fan, the bell mouth of the shroud is configured substantially parallel to the ring portion. Alternatively, the bellmouth airflow downstream portion is curved so as to cover the ring portion from the airflow downstream side, and the airflow downstream end portion of the ring portion and the bellmouth end portion are opposed to each other in the airflow direction. ing.
　本開示の発明者らの検討によると、このような送風装置では、軸流ファンのリング部とシュラウドのベルマウスとの隙間（チップ隙間）に流入する逆流空気流れが、軸流ファンから吹き出される吹出空気流れと干渉し、騒音が増大しやすい。 According to the studies by the inventors of the present disclosure, in such a blower, the backflow air flow that flows into the gap (chip gap) between the ring portion of the axial fan and the bell mouth of the shroud is blown out from the axial fan. Noise is likely to increase due to interference with the air flow.
　本開示は上記点に鑑みて、騒音を低減することができる送風装置を提供することを目的とする。 This indication aims at providing the air blower which can reduce noise in view of the above-mentioned point.
　本開示の一態様による送風装置は、回転駆動されて空気流を発生する軸流式の送風ファンと、送風ファンに吸込される空気の吸込口部と、送風ファンから空気を吹き出す吹出口部とが形成されたシュラウドとを備える。送風ファンは、回転中心に設けられるボス部から放射状に延びるとともに、回転方向に相互に離間して配設された複数のブレードと、複数のブレードの外周端部同士を周方向で接続するリング部とを有しており、吹出口部の空気流れ下流側端部の内周壁面は、リング部の空気流れ下流側端部に対して送風ファンにおける回転軸の径方向の外側に配置されており、吹出口部の空気流れ下流側端部は、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置されている。 A blower according to an aspect of the present disclosure includes an axial-flow type blower fan that is driven to rotate and generates an air flow, an air inlet port that is sucked into the blower fan, and an air outlet unit that blows air from the blower fan. And a shroud formed. The blower fan extends radially from a boss provided at the center of rotation, and a plurality of blades spaced apart from each other in the rotation direction and a ring portion that connects the outer peripheral ends of the plurality of blades in the circumferential direction. And the inner peripheral wall surface of the air flow downstream end of the air outlet is disposed on the radially outer side of the rotary shaft of the blower fan with respect to the air flow downstream end of the ring portion. The air flow downstream end of the air outlet is positioned on the outer side in the radial direction of the rotating shaft as it goes toward the air flow downstream.
　これによれば、送風ファンの吹出空気流れ（主流）に対して逆流する空気が、送風ファンのリング部とシュラウドの吹出口部とのクリアランスに流入しやすくなる。したがって、送風ファンの逆流空気を、送風ファンの回転軸の径方向外側から上記クリアランスにスムーズに流入させることができるので、送風ファンの主流である吹出空気と逆流空気とが干渉することによる騒音を低減できる。 According to this, the air flowing backward with respect to the blown air flow (main flow) of the blower fan easily flows into the clearance between the ring part of the blower fan and the outlet part of the shroud. Accordingly, since the backflow air of the blower fan can be smoothly flowed into the clearance from the outside in the radial direction of the rotation shaft of the blower fan, noise caused by interference between the blowout air and the backflow air, which is the main flow of the blower fan, is generated. Can be reduced.
　なお、本開示における「吹出口部の空気流れ下流側端部は、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置するように構成されている」とは、吹出口部の空気流れ下流側端部の全域が、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置するように構成されていることのみ含む意味するものではなく、吹出口部の空気流れ下流側端部の一部が、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置するように構成されていることをも含むものである。 In the present disclosure, “the air flow downstream end portion of the air outlet portion is configured to be positioned on the outer side in the radial direction of the rotation shaft toward the air flow downstream side” means that the air of the air outlet portion It does not mean that the entire area of the downstream end of the flow is configured to be positioned on the radially outer side of the rotating shaft toward the downstream side of the air flow. It is also included that a part of the part is configured to be positioned on the outer side in the radial direction of the rotation shaft as it goes downstream of the air flow.
第１実施形態に係る送風装置を示す平面図である。It is a top view which shows the air blower which concerns on 1st Embodiment. 第１実施形態に係る送風装置の正面図である。It is a front view of the air blower concerning a 1st embodiment. 図２のＩＩＩ－ＩＩＩ断面図である。FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 第２実施形態に係る送風装置の一部を示す断面図である。It is sectional drawing which shows a part of air blower which concerns on 2nd Embodiment. 第３実施形態に係る送風装置の一部を示す断面図である。It is sectional drawing which shows a part of air blower which concerns on 3rd Embodiment. 他の実施形態（１）に係る送風装置の一部を示す断面図である。It is sectional drawing which shows a part of air blower which concerns on other embodiment (1). 他の実施形態（２）に係る送風装置の一部を示す断面図である。It is sectional drawing which shows a part of air blower which concerns on other embodiment (2).
　以下、本開示の実施形態について図に基づいて説明する。なお、以下の各実施形態相互において、互いに同一もしくは均等である部分には、図中、同一符号を付してある。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.
　（第１実施形態）
　本開示の第１実施形態について図面を参照して説明する。図１、図２および図３に示すように、本実施形態で示される送風装置は、自動車の冷媒放熱器１０およびラジエータ２０の冷却に用いられる送風装置である。送風装置は、シュラウド３０と、送風ファン４０と、モータ５０と、を備えて構成されている。 (First embodiment)
A first embodiment of the present disclosure will be described with reference to the drawings. As shown in FIGS. 1, 2, and 3, the blower shown in the present embodiment is a blower used for cooling the refrigerant radiator 10 and the radiator 20 of an automobile. The blower device includes a shroud 30, a blower fan 40, and a motor 50.
　冷媒放熱器１０は、図示しない冷凍サイクル内を循環する冷媒と外気とを熱交換して冷媒を冷却する熱交換器である。ラジエータ２０は、エンジン冷却水と外気とを熱交換してエンジン冷却水を冷却する熱交換器である。冷媒放熱器１０およびラジエータ２０の外形は、平面視、すなわち空気流れ方向と垂直な面において矩形状（本実施形態では略長方形状）となっている。 The refrigerant radiator 10 is a heat exchanger that cools the refrigerant by exchanging heat between the refrigerant circulating in the refrigeration cycle (not shown) and the outside air. The radiator 20 is a heat exchanger that cools the engine coolant by exchanging heat between the engine coolant and the outside air. The external shapes of the refrigerant radiator 10 and the radiator 20 are rectangular (in the present embodiment, substantially rectangular) in plan view, that is, in a plane perpendicular to the air flow direction.
　冷媒放熱器１０は、ラジエータ２０の車両前方側すなわち空気流れ上流側に配置されている。冷媒放熱器１０及びラジエータ２０は連結されて一体化されている。 The refrigerant radiator 10 is disposed on the vehicle front side of the radiator 20, that is, on the upstream side of the air flow. The refrigerant radiator 10 and the radiator 20 are connected and integrated.
　シュラウド３０は、樹脂製（例えば、ガラス繊維入りポリプロピレン）であって、モータ５０を保持するとともに、送風ファン４０により誘起される空気流が冷媒放熱器１０およびラジエータ２０に流れるように空気流をガイドする部品である。シュラウド３０は、ラジエータ２０の車両後方側すなわち空気流れ下流側に配置されている。 The shroud 30 is made of resin (for example, polypropylene containing glass fiber), holds the motor 50, and guides the air flow so that the air flow induced by the blower fan 40 flows to the refrigerant radiator 10 and the radiator 20. It is a part to do. The shroud 30 is disposed on the vehicle rear side of the radiator 20, that is, on the air flow downstream side.
　シュラウド３０は、環状（円筒状）に形成されるとともに送風ファン４０の外周を覆うように構成された円筒部３１と、ラジエータ２０の空気流れ下流側の空間を円筒部３１まで滑らかな流路によって接続する平面部３２とを有している。本実施形態において、平面部３２が、送風ファン４０に吸込される空気の吸込口部を構成しており、円筒部３１が、送風ファン４０から空気を吹き出す吹出口部を構成している。 The shroud 30 is formed in an annular shape (cylindrical shape) and is configured to cover the outer periphery of the blower fan 40, and a space on the downstream side of the air flow of the radiator 20 through the smooth passage to the cylindrical portion 31. And a plane portion 32 to be connected. In the present embodiment, the flat surface portion 32 constitutes an air inlet portion for air sucked into the blower fan 40, and the cylindrical portion 31 constitutes an air outlet portion that blows air from the blower fan 40.
　平面部３２は、ラジエータ２０の背面すなわちラジエータ２０の車両後方側の面を覆っている。平面部３２は円筒部３１と連通する筒状になっていると共に、外部とも連通している。 The flat portion 32 covers the back surface of the radiator 20, that is, the surface of the radiator 20 on the vehicle rear side. The flat surface portion 32 has a cylindrical shape that communicates with the cylindrical portion 31 and also communicates with the outside.
　また、円筒部３１の平面形状は円形になっている。一方、シュラウド３０の平面形状は矩形である。すなわち、シュラウド３０の外周縁部３００の平面形状が矩形状になっている。また、平面部３２の開口面積は、円筒部３１の開口面積より大きい。 Moreover, the planar shape of the cylindrical part 31 is circular. On the other hand, the planar shape of the shroud 30 is a rectangle. That is, the planar shape of the outer peripheral edge 300 of the shroud 30 is rectangular. Further, the opening area of the plane portion 32 is larger than the opening area of the cylindrical portion 31.
　送風ファン４０は、空気を送風する軸流式の送風ファンであり、回転軸を中心に回転するように構成されている。送風ファン４０は、回転中心に設けられるボス部４１から放射状に延びるとともに、回転方向に相互に離間して配設された複数のブレード４２と、複数のブレード４２の外周端部同士を環状に接続するリング部４３とを有している。 The blower fan 40 is an axial-flow type blower fan that blows air, and is configured to rotate around a rotation shaft. The blower fan 40 extends radially from a boss portion 41 provided at the center of rotation, and connects the plurality of blades 42 spaced apart from each other in the rotation direction and the outer peripheral ends of the plurality of blades 42 in an annular shape. And a ring portion 43 to be used.
　送風ファン４０はシュラウド３０の円筒部３１の中空部分に配置されている。リング部４３の外周面と円筒部３１の内周面との間には、クリアランス６１が形成されている。これにより、送風ファン４０は、円筒部３１内において円筒部３１と接触することなく回転可能となっている。 The blower fan 40 is disposed in the hollow portion of the cylindrical portion 31 of the shroud 30. A clearance 61 is formed between the outer peripheral surface of the ring portion 43 and the inner peripheral surface of the cylindrical portion 31. Thereby, the blower fan 40 is rotatable in the cylindrical portion 31 without contacting the cylindrical portion 31.
　以下、クリアランス６１における送風ファン４０の回転軸（以下、単に回転軸という）の径方向の長さ、すなわちリング部４３の外周面と円筒部３１の内周面との間のおける回転軸の径方向の長さを、隙間高さという。 Hereinafter, the radial length of the rotating shaft (hereinafter simply referred to as the rotating shaft) of the blower fan 40 in the clearance 61, that is, the diameter of the rotating shaft between the outer peripheral surface of the ring portion 43 and the inner peripheral surface of the cylindrical portion 31. The length in the direction is called the gap height.
　モータ５０は、送風ファン４０に回転動力を与える電動機であり、モータシャフト（図示せず）を有している。モータ５０は、シュラウド３０の円筒部３１に設けられた複数のモータステー３３によって支持されている。そして、モータ５０はモータシャフトを回転させることにより送風ファン４０を回転させ、送風ファン４０の軸線方向すなわち回転軸の軸方向に空気流を発生させる。以上が、送風装置の全体構成である。 The motor 50 is an electric motor that gives rotational power to the blower fan 40, and has a motor shaft (not shown). The motor 50 is supported by a plurality of motor stays 33 provided on the cylindrical portion 31 of the shroud 30. The motor 50 rotates the blower fan 40 by rotating the motor shaft, and generates an air flow in the axial direction of the blower fan 40, that is, in the axial direction of the rotation shaft. The above is the overall configuration of the blower.
　次に、シュラウド３０の円筒部３１および送風ファン４０の詳細な形状について説明する。 Next, detailed shapes of the cylindrical portion 31 of the shroud 30 and the blower fan 40 will be described.
　図３に示すように、リング部４３の空気流れ上流側の端部には、回転軸の径方向外側に向かって延びるツバ部４４が接続されている。ツバ部４４は、リング部４３と一体に形成されている。 As shown in FIG. 3, a flange portion 44 is connected to the end of the ring portion 43 on the upstream side of the air flow and extends radially outward of the rotating shaft. The collar portion 44 is formed integrally with the ring portion 43.
　シュラウド３０の円筒部３１は、リング部４３におけるツバ部４４以外の部位（平行部）と略平行に形成されている。円筒部３１の空気流れ下流側端部３４の内周壁面は、送風ファン４０のリング部４３の空気流れ下流側端部に対して回転軸の径方向の外側に配置されている。 The cylindrical portion 31 of the shroud 30 is formed substantially parallel to a portion (parallel portion) other than the flange portion 44 in the ring portion 43. The inner peripheral wall surface of the air flow downstream end portion 34 of the cylindrical portion 31 is disposed on the radially outer side of the rotation shaft with respect to the air flow downstream end portion of the ring portion 43 of the blower fan 40.
　円筒部３１の空気流れ下流側端部３４は、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置されている。換言すると、円筒部３１の空気流れ下流側端部３４は、空気流れ上流側から下流側に向かって円筒部３１の下流側端部３４とリング部４３間の隙間寸法が拡大するように構成されている。すなわち、円筒部３１の空気流れ下流側端部３４は、空気流れ上流側から下流側に向かってリング部４３から遠ざかるようにカーブされている。 The air flow downstream end 34 of the cylindrical portion 31 is positioned on the outer side in the radial direction of the rotating shaft as it goes toward the air flow downstream. In other words, the air flow downstream end portion 34 of the cylindrical portion 31 is configured such that the gap dimension between the downstream end portion 34 of the cylindrical portion 31 and the ring portion 43 increases from the air flow upstream side toward the downstream side. ing. That is, the air flow downstream end 34 of the cylindrical portion 31 is curved so as to move away from the ring portion 43 from the air flow upstream side toward the downstream side.
　本実施形態では、円筒部３１における空気流れ下流側端部３４は、回転軸の径方向内側に向けて突出された断面円弧状に形成されている。 In this embodiment, the air flow downstream end 34 in the cylindrical portion 31 is formed in a circular arc shape that protrudes radially inward of the rotating shaft.
　以上説明したように、本実施形態では、円筒部３１の空気流れ下流側端部３４の内周壁面を、リング部４３の空気流れ下流側端部に対して回転軸の径方向の外側に配置するとともに、円筒部３１の空気流れ下流側端部３４を、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置している。これによれば、送風ファン４０の吹出空気流れ（主流）に対して逆流する空気が、送風ファン４０のリング部４３とシュラウド３０の円筒部３１とのクリアランス６１に流入しやすくなる。すなわち、送風ファン４０の主流と逆流とを積極的に分離させている。これにより、送風ファン４０の逆流空気を、送風ファン４０の回転軸の径方向外側から上記クリアランス６１に流入させることができるので、送風ファン４０の主流である吹出空気と逆流空気とが干渉することによる騒音を低減できる。 As described above, in the present embodiment, the inner peripheral wall surface of the air flow downstream end portion 34 of the cylindrical portion 31 is disposed on the radially outer side of the rotating shaft with respect to the air flow downstream end portion of the ring portion 43. In addition, the air flow downstream end 34 of the cylindrical portion 31 is positioned on the outer side in the radial direction of the rotating shaft as it goes toward the air flow downstream. According to this, the air that flows backward with respect to the blown air flow (main flow) of the blower fan 40 easily flows into the clearance 61 between the ring portion 43 of the blower fan 40 and the cylindrical portion 31 of the shroud 30. That is, the main flow and the reverse flow of the blower fan 40 are positively separated. Thereby, since the backflow air of the ventilation fan 40 can be made to flow in into the said clearance 61 from the radial direction outer side of the rotating shaft of the ventilation fan 40, the blowing air and the backflow air which are the mainstreams of the ventilation fan 40 interfere. Noise due to can be reduced.
　なお、本実施形態によれば、上述したように送風ファン４０の主流と逆流との干渉を抑制できるため、主流である吹出空気の流れを向上させることもできる。 In addition, according to this embodiment, since the interference with the main flow and backflow of the ventilation fan 40 can be suppressed as mentioned above, the flow of the mainstream blown air can also be improved.
　（第２実施形態）
　次に、本開示の第２実施形態について図４に基づいて説明する。本第２実施形態は、上記第１実施形態と比較して、円筒部３１の空気流れ下流側端部３４の形状が異なるものである。 (Second Embodiment)
Next, a second embodiment of the present disclosure will be described based on FIG. The second embodiment is different from the first embodiment in the shape of the air flow downstream end 34 of the cylindrical portion 31.
　図４に示すように、本第２実施形態では、円筒部３１の空気流れ下流側端部３４は、空気流れ下流側に向かうにつれて回転軸の径方向の外側に直線的に傾斜されている。すなわち、円筒部３１の空気流れ下流側端部３４は、空気流れ上流側から下流側に向かって直線的に円筒部３１の下流側端部３４とリング部４３間の隙間寸法が拡大するように傾斜されている。　本実施形態によれば、送風ファン４０の逆流空気が、送風ファン４０のリング部４３とシュラウド３０の円筒部３１とのクリアランス６１に流入しやすくなるので、上記第１実施形態と同様の効果を得ることが可能となる。 As shown in FIG. 4, in the second embodiment, the air flow downstream end 34 of the cylindrical portion 31 is linearly inclined outwardly in the radial direction of the rotating shaft toward the air flow downstream. That is, the air flow downstream end 34 of the cylindrical portion 31 linearly increases from the upstream side of the air flow toward the downstream side so that the gap dimension between the downstream end 34 of the cylindrical portion 31 and the ring portion 43 increases. It is inclined. According to the present embodiment, the backflow air of the blower fan 40 is likely to flow into the clearance 61 between the ring portion 43 of the blower fan 40 and the cylindrical portion 31 of the shroud 30, so the same effect as in the first embodiment is obtained. Can be obtained.
　（第３実施形態）
　次に、本開示の第３実施形態について図５に基づいて説明する。本第３実施形態は、上記第１実施形態と比較して、円筒部３１の空気流れ下流側端部３４の形状が異なるものである。 (Third embodiment)
Next, a third embodiment of the present disclosure will be described based on FIG. The third embodiment is different from the first embodiment in the shape of the air flow downstream end 34 of the cylindrical portion 31.
　図５に示すように、本第３実施形態では、円筒部３１の空気流れ下流側端部３４は、空気流れ上流側から下流側に向かって段階的にリング部４３から遠ざかるように、断面形状が階段状となっている。すなわち、円筒部３１の空気流れ下流側端部３４は、空気流れ上流側から下流側に向かって階段状に隙間寸法が拡大するように構成されている。 As shown in FIG. 5, in the third embodiment, the air flow downstream end 34 of the cylindrical portion 31 has a cross-sectional shape so as to gradually step away from the ring portion 43 from the air flow upstream side to the downstream side. Is stepped. That is, the air flow downstream end 34 of the cylindrical portion 31 is configured such that the gap size increases stepwise from the air flow upstream side toward the downstream side.
　本実施形態によれば、送風ファン４０の逆流空気が、送風ファン４０のリング部４３とシュラウド３０の円筒部３１とのクリアランス６１に流入しやすくなるので、上記第１実施形態と同様の効果を得ることが可能となる。 According to the present embodiment, the backflow air of the blower fan 40 is likely to flow into the clearance 61 between the ring portion 43 of the blower fan 40 and the cylindrical portion 31 of the shroud 30, so the same effect as in the first embodiment is obtained. Can be obtained.
　（他の実施形態）
　本開示は上述の実施形態に限定されることなく、本開示の趣旨を逸脱しない範囲内で、以下のように種々変形可能である。 (Other embodiments)
The present disclosure is not limited to the above-described embodiment, and can be variously modified as follows without departing from the spirit of the present disclosure.
　（１）上記各実施形態では、シュラウド３０の円筒部３１における空気流れ下流側端部３４の全域を、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置するように構成した例について説明したが、これに限定されない。例えば、図６に示すように、円筒部３１における空気流れ下流側端部３４の一部を、空気流れ下流側に向かうにつれて回転軸の径方向の外側に位置するように構成してもよい。 (1) In each of the above embodiments, the entire region of the air flow downstream end portion 34 in the cylindrical portion 31 of the shroud 30 is configured so as to be positioned on the outer side in the radial direction of the rotating shaft toward the air flow downstream side. Although described, it is not limited to this. For example, as shown in FIG. 6, you may comprise so that a part of air flow downstream edge part 34 in the cylindrical part 31 may be located in the radial direction outer side of a rotating shaft as it goes to an air flow downstream.
　（２）上記各実施形態では、円筒部３１の空気流れ下流側端部３４の内周壁面を、送風ファン４０のリング部４３の空気流れ下流側端部に対して回転軸の径方向の外側に配置した例について説明したが、これに限定されない。例えば、図７に示すように、円筒部３１の空気流れ下流側端部３４の内周壁面を、空気流れ方向から見たときにリング部４３の空気流れ下流側端部と重合するように配置してもよい。 (2) In each of the above embodiments, the inner peripheral wall surface of the air flow downstream end portion 34 of the cylindrical portion 31 is radially outside the rotation shaft with respect to the air flow downstream end portion of the ring portion 43 of the blower fan 40. Although the example arrange | positioned in was demonstrated, it is not limited to this. For example, as shown in FIG. 7, the inner peripheral wall surface of the air flow downstream end 34 of the cylindrical portion 31 is arranged so as to overlap with the air flow downstream end of the ring portion 43 when viewed from the air flow direction. May be.
　（３）上記各実施形態同士は、実施可能な範囲で適宜組み合わせてもよい。 (3) The above embodiments may be appropriately combined within a feasible range.
　（４）上記各実施形態では、本開示の送風装置を、自動車の冷媒放熱器１０及びラジエータ２０の冷却に用いられる送風装置として構成した例について説明したが、これは一例である。すなわち、上記で示した構成に限定されることなく、本開示を実現できる他の構成とすることもできる。例えば、送風装置は少なくともシュラウド３０と送風ファン４０とを備えた構成でもよい。 (4) In each of the above embodiments, the example in which the air blower of the present disclosure is configured as the air blower used for cooling the refrigerant radiator 10 and the radiator 20 of the automobile has been described, but this is an example. That is, the present disclosure is not limited to the configuration described above, and other configurations that can realize the present disclosure can be employed. For example, the structure provided with the shroud 30 and the ventilation fan 40 at least may be sufficient as an air blower.

Claims (5)

  1. 　回転駆動されて空気流を発生する軸流式の送風ファン（４０）と、
    　前記送風ファン（４０）に吸込される空気の吸込口部（３２）と、前記送風ファン（４０）から空気を吹き出す吹出口部（３１）とが形成されたシュラウド（３０）とを備える送風装置であって、
    　前記送風ファン（４０）は、
    　回転中心に設けられるボス部（４１）から放射状に延びるとともに、回転方向に相互に離間して配設された複数のブレード（４２）と、
    　前記複数のブレード（４２）の外周端部同士を周方向で接続するリング部（４３）とを有しており、
    　前記吹出口部（３１）の空気流れ下流側端部（３４）の内周壁面は、前記リング部（４３）の空気流れ下流側端部に対して前記送風ファン（４０）における回転軸の径方向の外側に配置されており、
    　前記吹出口部（３１）の空気流れ下流側端部（３４）は、空気流れ下流側に向かうにつれて前記回転軸の径方向の外側に位置されている送風装置。     An axial blower fan (40) that is rotationally driven to generate an airflow;
    A blower device comprising an air inlet port (32) sucked into the blower fan (40) and a shroud (30) formed with a blowout port (31) for blowing air from the blower fan (40). Because
    The blower fan (40)
    A plurality of blades (42) extending radially from a boss portion (41) provided at the center of rotation and spaced apart from each other in the rotational direction;
    A ring portion (43) for connecting the outer peripheral ends of the plurality of blades (42) in the circumferential direction;
    The inner peripheral wall surface of the air flow downstream end (34) of the air outlet (31) is the diameter of the rotating shaft of the blower fan (40) with respect to the air flow downstream end of the ring (43). Arranged outside the direction,
    The air flow downstream end (34) of the air outlet (31) is a blower that is positioned on the outer side in the radial direction of the rotating shaft toward the air flow downstream.
  2. 　前記吹出口部（３１）の空気流れ下流側端部（３４）は、前記回転軸の径方向の内側に向けて滑らかに突出しカーブされている請求項１に記載の送風装置。 The air blower according to claim 1, wherein the air flow downstream end (34) of the air outlet (31) is smoothly projected and curved inward in the radial direction of the rotating shaft.
  3. 　前記吹出口部（３１）の空気流れ下流側端部（３４）は、空気流れ下流側に向かうにつれて前記回転軸の径方向の外側に直線的に傾斜されている請求項１に記載の送風装置。 The air blower device according to claim 1, wherein the air flow downstream end portion (34) of the air outlet portion (31) is linearly inclined outward in the radial direction of the rotation shaft toward the air flow downstream side. .
  4. 　前記吹出口部（３１）の空気流れ下流側端部（３４）の内周壁面は、空気流れ方向において前記リング部（４３）の空気流れ下流側端部と重合する請求項１ないし請求項３のいずれかに記載の送風装置。 The inner peripheral wall surface of the air flow downstream end (34) of the air outlet (31) overlaps with the air flow downstream end of the ring part (43) in the air flow direction. The air blower in any one of.
  5. 　前記送風ファン（４０）は、前記シュラウド（３０）の前記吹出口部（３１）と前記送風ファン（４０）の前記リング部（４３）との間にクリアランスを有するように配置され、
    　前記リング部（４３）は前記吹出口部（３１）と平行に設けられている請求項１ないし請求項４のいずれかに記載の送風装置。     The blower fan (40) is disposed so as to have a clearance between the outlet part (31) of the shroud (30) and the ring part (43) of the blower fan (40),
    The said ring part (43) is an air blower in any one of Claim 1 thru | or 4 provided in parallel with the said blower outlet part (31).
PCT/JP2015/000805 2014-02-21 2015-02-20 Air-blowing device WO2015125485A1 (en)

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BR112016017739-8A BR112016017739B1 (en) 2014-02-21 2015-02-20 BLOWER
KR1020167016794A KR101848717B1 (en) 2014-02-21 2015-02-20 Blower
EP15752394.5A EP3109484B1 (en) 2014-02-21 2015-02-20 Air-blowing device
US15/112,706 US10309422B2 (en) 2014-02-21 2015-02-20 Blower
MX2016009570A MX2016009570A (en) 2014-02-21 2015-02-20 Air-blowing device.
CN201580009549.XA CN106062380B (en) 2014-02-21 2015-02-20 Air supply device
CA2940267A CA2940267C (en) 2014-02-21 2015-02-20 Blower shroud and blade ring

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JP2014031516A JP6340819B2 (en) 2014-02-21 2014-02-21 Blower
JP2014-031516 2014-02-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108603516A (en) * 2016-05-11 2018-09-28 株式会社电装 Fan guard

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD742581S1 (en) * 2013-12-09 2015-11-03 Kenall Manufacturing Company Driver housing
KR101996052B1 (en) * 2016-11-01 2019-07-03 엘지전자 주식회사 Air conditioner
JP6762213B2 (en) * 2016-11-29 2020-09-30 株式会社キョクトー Air suction and blowing tool
WO2018185952A1 (en) * 2017-04-05 2018-10-11 シャープ株式会社 Louver and blowing device
JP7255549B2 (en) * 2019-09-27 2023-04-11 株式会社デンソー Blower
DE112020004585T5 (en) * 2019-09-27 2022-06-23 Denso Corporation fan
EP4139575A1 (en) * 2020-04-23 2023-03-01 Clark Equipment Company Identification and reduction of backflow suction in cooling systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0544696A (en) * 1991-08-08 1993-02-23 Matsushita Refrig Co Ltd Blower
JP2001501284A (en) * 1997-07-29 2001-01-30 ヴァレオ インコーポレイテッド Axial fan
JP2008057480A (en) * 2006-09-01 2008-03-13 Daikin Ind Ltd Propeller fan with shroud

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030993A (en) * 1934-08-27 1936-02-18 Internat Engineering Inc Fan
US4685513A (en) * 1981-11-24 1987-08-11 General Motors Corporation Engine cooling fan and fan shrouding arrangement
US5489186A (en) * 1991-08-30 1996-02-06 Airflow Research And Manufacturing Corp. Housing with recirculation control for use with banded axial-flow fans
US5423660A (en) * 1993-06-17 1995-06-13 Airflow Research And Manufacturing Corporation Fan inlet with curved lip and cylindrical member forming labyrinth seal
GB2286856B (en) * 1994-02-16 1998-09-16 Mitsubishi Electric Corp Blower
JP4140236B2 (en) * 2000-12-28 2008-08-27 ダイキン工業株式会社 Blower and outdoor unit for air conditioner
JP2008014302A (en) * 2006-06-09 2008-01-24 Nippon Densan Corp Axial flow fan
US7789622B2 (en) * 2006-09-26 2010-09-07 Delphi Technologies, Inc. Engine cooling fan assembly
DE112007003353A5 (en) 2006-12-18 2009-12-03 Temic Automotive Electric Motors Gmbh Axial fan for a vehicle radiator
JP5199849B2 (en) 2008-12-05 2013-05-15 三菱重工業株式会社 Vehicle heat exchange module and vehicle equipped with the same
JP5177037B2 (en) 2009-03-19 2013-04-03 株式会社デンソー Blower
JP5611360B2 (en) * 2010-09-14 2014-10-22 三菱電機株式会社 Outdoor unit blower, outdoor unit and refrigeration cycle apparatus
DE102012023454A1 (en) * 2012-11-30 2014-06-05 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Fan device and vehicle with a fan device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0544696A (en) * 1991-08-08 1993-02-23 Matsushita Refrig Co Ltd Blower
JP2001501284A (en) * 1997-07-29 2001-01-30 ヴァレオ インコーポレイテッド Axial fan
JP2008057480A (en) * 2006-09-01 2008-03-13 Daikin Ind Ltd Propeller fan with shroud

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3109484A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108603516A (en) * 2016-05-11 2018-09-28 株式会社电装 Fan guard
US11009042B2 (en) 2016-05-11 2021-05-18 Denso Corporation Fan shroud

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CA2940267A1 (en) 2015-08-27
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